C++ Inherit specific method of another Class

Development Programming & Scripting C++
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1

I have Class AA, which contains nonstatic method AA::Z (can not be static, the way I see it, as it calls GetWorld())

I need another Class AB to use this method from an object of that class (this specific method, I don’t need to inherit all of AA).

What I did:

UCLASS()
class MY_API AA : public AActor
{
	GENERATED_BODY()

public:
...
bool AA::Z();
...
}

and then

UCLASS()
class MY_API AB : public AGameState, private A // this seems to be the problem
{
	GENERATED_BODY()

public:
...
using AA::Z;
...
}

This doesn’t really work. And I’m not sure if it is possible in UE4. So my question is, should I dig deeper and in what direction, or should I just rewrite (AA::Z) - make it static, so I could call it from any blueprint without inheritance and make it recieve result of GetWorld() within method parameters? Second method is possible in this case, but I might need to use such inheritance in future.

Thanks!